Note

Some hard disk drives do not support a low-power standby mode. Also, the delay caused by the hard disk drive returning to active mode may cause errors in some applications. If you have problems, you may want to disable the standby mode for the hard disk drive.

Changing the Processor Speed

Your computer’s processor can operate at two speeds: fast or slow (8 MHz). The slow speed is available to provide compatibility with older application programs, such as those that require you to leave a key disk-the diskette that contains the copy protection-in the diskette drive.

When your computer is operating at fast speed, the SPEED light on the front panel is on. When the computer is operating at slow speed, the light is off.

You should use fast speed for almost everything you do because your programs will work faster. However, certain application programs have specific timing requirements and can run only at the slower speed. See your application software manual to determine if this is the case.

You can change the processor speed temporarily by entering one of the following commands from the numeric keypad on your keyboard:

To select slow speed, press Ctrl Alt -. (Press the - key on the numeric keypad.)To select fast speed, press Ctrl Alt +.

The speed setting remains in effect until you reset your computer or turn it off.

Using Your Computer 2-5